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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2022-06-10 12:02:04 +0530 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2022-07-12 20:35:20 +0530 |
| commit | 2083da24eb56ce622332946800a67a7449d85fe5 (patch) | |
| tree | 5e66680874d4ddaa82f9bda53a8ef2bc5f243c13 /include/linux/pm_opp.h | |
| parent | 3cb16ad69bef90a86390d7f94081fd5ae9e0df8d (diff) | |
| download | linux-2083da24eb56ce622332946800a67a7449d85fe5.tar.bz2 | |
OPP: Allow multiple clocks for a device
This patch adds support to allow multiple clocks for a device.
The design is pretty much similar to how this is done for regulators,
and platforms can supply their own version of the config_clks() callback
if they have multiple clocks for their device. The core manages the
calls via opp_table->config_clks() eventually.
We have kept both "clk" and "clks" fields in the OPP table structure and
the reason is provided as a comment in _opp_set_clknames(). The same
isn't done for "rates" though and we use rates[0] at most of the places
now.
Co-developed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'include/linux/pm_opp.h')
| -rw-r--r-- | include/linux/pm_opp.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 50cbc75bef71..104151dfe46c 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -61,9 +61,13 @@ typedef int (*config_regulators_t)(struct device *dev, struct dev_pm_opp *old_opp, struct dev_pm_opp *new_opp, struct regulator **regulators, unsigned int count); +typedef int (*config_clks_t)(struct device *dev, struct opp_table *opp_table, + struct dev_pm_opp *opp, void *data, bool scaling_down); + /** * struct dev_pm_opp_config - Device OPP configuration values - * @clk_names: Clk names, NULL terminated array, max 1 clock for now. + * @clk_names: Clk names, NULL terminated array. + * @config_clks: Custom set clk helper. * @prop_name: Name to postfix to properties. * @config_regulators: Custom set regulator helper. * @supported_hw: Array of hierarchy of versions to match. @@ -78,6 +82,7 @@ typedef int (*config_regulators_t)(struct device *dev, struct dev_pm_opp_config { /* NULL terminated */ const char * const *clk_names; + config_clks_t config_clks; const char *prop_name; config_regulators_t config_regulators; const unsigned int *supported_hw; |